This study tests a new imaging drug called 203Pb-RMX-VH-PIB for brain tumors (glioblastoma multiforme, GBM) and pancreatic cancer (pancreatic ductal adenocarcinoma, PDAC). It checks how the drug moves in the body (biodistribution) and how much radiation organs receive (dosimetry). Patients will get one intravenous (IV) injection of the drug and have several scans using a special machine called SPECT/CT to take pictures of their insides. Doctors will also monitor blood, urine, heart rhythm, and vital signs for safety. This study aims to enroll 20 patients who meet specific health criteria, like having a certain size of tumor or being stable without recent chemotherapy. Participants' health will be followed for 30 days to check for any side effects.
- Participants receive one IV injection and several scans.
- Study involves monitoring for 30 days for any side effects.
- Health criteria must be met for participation.